Project on On-line Examination System



VBS Purvanchal University 

On-Line Examination
By
xxxxxxx
Under the Guidance of
xxxxxxxxxxxx
Submitted to the School of Computer and System Sciences in partial fulfillment of the requirements                    
For the degree of
Bachelor  
Of  
Computer Applications
 
VBS Purvanchal University
Jaunpur-221122.


Title of the Project
  
     
On-Line Examination
System

 --------------------------------------
 
Serial
Topic
Page


1
Title of the project
2


2
Introduction
7-8


3
Objective
9


4
Purpose, Scope and Applicability
10-11


5
Survey of technologies
12-14


6
Front End User
15


7
Back End User
16


8
Software and Hardware Requirements
17-18


9
Feasibility
19-22


10
Requirements Specification
23-25


11
Planning and Scheduling
26-27


12
E R Diagram
30


13
Analysis
31-34


14
Modules and their Description
35-38


15
Data Structures
39-42


16
Table Description
43-45


17
Data Integrity Design
46-47


18
Process Logic
48-51


19
Security Mechanism
52-53


17
Future Scope and further Enhancement
54


18
Bibliography
55



--------------------------------------------
 Introduction :
On  Line Examination itself represent the examination through the internet. This project will help the university/ Institution to evaluate the question have multiple option with one correct answer. This project contains two types of question viz. subjective and objective. Students have to write the descriptive answer for the subjective question will be randomly generated. It would be evaluated automatically i.e. by the system.
            This project helps the management to conducting online examination and save recourse. The university/Institution can conduct the online examination and announce the status or result in a few data. The examination department is responsible for the marinating of question paper and it would be completely secure.
            This is the era of computer and we are adopting fast mechanism to solve any problem. On line examination is also a way to give result as soon as we submit our paper.







 --------------------------------------------------------------------




Synopsis








-----------------------------------------------------------

 INTRODUCTION

Background:-
As the name of the project “On-Line Examination” suggests, the system/application has to manage the examination for various department of an academy. So to keep the information correct and fast, it will manage the status/information of that examination of that examination so one can get the details of exam as per their program.
Earlier it was a very time consuming and tedious process where both students as well as university used to perform all tasks manually be it Student Registration, Sqtting Question Papers, Setting Schedules to finally declaring the result. It was cumbersome since these details were now generated, managed and kept in computers.It was still not that much simpler Later the process became a lot easier when computer system were introduced and all for students because they were stll expected to come in person to register, appear for exam at exam center and for all those formalities.
Now we are expected to develop an web application which converts all of these tasks atomized as well as web enabled. There are applications already working in this area like MCSE, CCNA which conducts their examination online.
We, as a 6th sem. student of BCA are making this project by taking help from theses already working and tested applications as well as making our own set of improvements.
This application is coded in  .Net. This Software project is very much helpful to students, Examination department and Exam controller. It stores the information about Students, Exams, Report,  Results, Student’s details and Fee Status etc. As we know that this software project is coded in .Net programming language, it is user friendly. That means this software is easy to operate. Even a person having less knowledge of computer can easily operate is, he will be guided throughout by the software to operate it. This Software is a best effort of changing in paper work to electronic work. This application is divided into many module, and each module is related to different part of code. This integration makes the project very user friendly. Another advantage of this software is the database that is designed very strongly, the current and previous information is stored in this database and maintain the database very easily.
University used to keep all the details in files manually. 

Objectives

The objective of the project “On Line Examination” is to make evaluation and conduction of examination massive but simple, cost effective and faster. They are as follows :
  • To provide an interface through which student can appear for examination online for objective as well as subjective type questions.
  • To provide registration for students done by themselves.
  • To not provide facility of copy and paste while attempting the Subjective questions on the web page.
  • When the student  starts the exam the timer will start automatically and show the student how much time is left.
  • The questions will be display randomly from question bank.
  • Objective answers will be checked automatically by the system from the database
  • For subjective answer manually checking by exam department will take place.
  • To provided user name and password  facility and  credentials should be checked properly at the time of login for student, expert, controller and Exam Dept Admin.
  • To provide an interface from where controller will create new Expert and Admin for Exam Dept.
  • The authority to modify the criteria is provided to the controller of examination.
  • To facilitate Experts to send a collection of questions in Question Bank.
  • The Exam Dept will manage the question bank sent by experts.
  • To facilitate Exam Dept Admin to make schedule and declare Result.
Purpose, Scope and Applicability:-
Purpose:-
Through this package we provide a fully customized web application. This system is an automated system so that the functional working of it is effective and time saving. In this modern era time is the most precious thing, so in context of time the new system will be effective to do a group of task in easy and secure manner.
To appear for an exam in manual system in an university is very time consuming process. Now the purpose of this system is to overcome the shortfall faced in the previous systems already working in the area.
The website will have to be secure, and properly working on WAN. It should be speedy with good interface. The university may conduct examination in various countries and in different languages. It should support multiple platforms at least those used by people commonly.
Scope:-
Methodology of the system is clear that result in the complete and proper working of the system from the requirements achieved. it contains the working model for the development of system. A sequential step of model is followed to develop the system so that it will maintain various software engineering features/parameters.
No need to take leave, visit a different town, city or even states in some cases. People can appear right from their laptop or home desktop.
Assumptions:
To develop this application, we’ve taken into account some assumptions. They are:
  1. University will provide each student a unique student Id during enrollment time. The purpose of this is so that no one can register on behalf of any other student. and only the student himself/herself can register for the examination using this id.
  2. Student login name will be generated automatically by concatenating student first Name and Enrollment No.
Like : Shwati has student id  ®   13P
So, Swati student login here will be ®   Swati_P13
  1. Expert login name will be generate same as student login name  but with small change.
like : Expert Login = (Expert First name +Course Name)
            The courses will be fed by hard-coding.
Limitation:-
1.         In the case of any type of  problem in student verification no functionality is defined in the system to correct it or inter-communication among users are also not available.
2.         The Fees is taken manually as there is not any module for online payment.
3.         The Total marks is get by the student only after some time of exam, because in case of subjective paper, the exam dept will evaluate the answer and declare the result. Student can see his result on internet through his LoginId and PWD only after that.
A detail section for limitation is devoted at the end  of documentation.



SURVEY OF TECHNOLOGIES

To develop this package different types of tools and database are used which are as follows:

1.         ASP.NET  2005

2.         Framwork 2.0

3.         Microsoft-sql server 2007

4.         Microsoft word processor


1.         ASP.NET 2005:
ASP.NET 2005 is a Microsoft technology for building the web based application and services. A ASP.NET application consists of forms ,controls,classes and procedures.
Forms are windows upon which you build your user interface are the building blocks of the user interface. Controls also called activeX conrols, are interface tools , such as labels ,textbox and command buttons, that you use to display information to the user, gather information from the user, and respond to user actions. Classes are templates from which you can create your own objects at run time.
Procedures are small routines you write that are callable from anywhere in your application. These routines will perform a function for you that you write once but can call many times.
An application is made up of forms, modules and classes. A form is made up of properties, events and controls. Controls are also made up of properties and events

Some Features Of ASP.NET

  • Language interoperability : a one language code is to interact with other language.
  • EDP(Event driven programming language): it is a Event Driven Programming language(i.e. we write code on its event and drive the program).
  • Rapid Application Development(RAID).
  • Allows the creation of COM components such as activeX controls.
  • Includes good debugging facilities.
2.         Framwork 2.0

Dot net framework is a platform that is provided by Microsoft technology in which we can develop web based application, window based  application and console base application with C#(c sharp),VB and J#(J sharp) and other 22 Language.
3.         Microsoft-SQL Server 2007
Microsoft SQL Server fulfills these responsibilities :

·         Reduction and redundancy :

Centralized control of the DBA avoids the unnecessary duplication of data and effectively Reduces the total amount of data storage required. It also eliminates the extra processing and of the inconsistencies e.g. Same format of grade card for all student.

·         Sharing data :

Any number of application program of user’s can share the same database .
For example we can access the list of study centers.

·   Data integrity :

Data integrity means that the data contains in the database both accurate and consistent.

·   Data security :

In this facility the confidential data must not be accessed by unauthorized person.

·   Rapidly Accessing Data :

SQL Server provides rapid access to data by utilizing indexes and storing frequently accessed data in memory.

·   SQL Server Enterprise Manager :

The Enterprise Manager is the central console from which most SQL Server database-management tasks can be coordinated. SQL Enterprise Manager provides a single interface from which all servers in a company can be managed.
4. SQL Server Enterprise Manager :
The Enterprise Manager is the central console from which most SQL Server database-management tasks can be coordinated. SQL Enterprise Manager provides a single interface from which all servers in a company can be managed.

Front End User
The .Net Initiative
Microsoft has introduced the .NET initiative with the intension of bridging the gap in interoperability between application. It aims at integrating various programming.
                       The .NET initiative offers a complete suite for developing and deploying applications. This suits consists of  .NET services, and the .NET framework.
  • .Net Products :- Microsoft has already introduced Visual Studio .Net, which
  • Is tool for developing .Net applications by using programming languages such as Visual Basic, C# and Visual C++. To ensure interaction between different applications, all .Net products use Extensible Markup Language (XML) for describing and exchanging data between application.
  • .Net Services :- .Net delivers software as web services. Therefore, User can subscribe to a web service and use it as long as they need it, regardless of the hardware and software platform. Microsoft is coming up with its own set of web services, known as my services. These services are based on the Microsoft Passport Authentication service, in addition to the web services provided easily with the .Net environment.
  • The .Net Framework :- it is the foundation on which us design, develop and deploy application. Its consistent and simplified programming model makes easier to built applications.
Back End User
This is the part of well known software package called as the Microsoft Office. It is designed to built the various database, and to perform other data work. SQL provides an extremely powerful, easy to use database that will serve our needs when you required the power of fully relational database. SQL is also helpful create a variety of database as well as how to enter, edit and final data in existing database.
SQL :
SQL server 2007 utilities, such as backup and restore, run much faster and have less effect on server operations. SQL Server 7.0 also includes a variety of new features designed to support the underlying database architecture and to provide more flexible system management. SQL Server also include a number of new features designed to reduce database backup and recovery times. A different backup captures only those data pages that have changed after the last database backup. Many times differential backup can eliminates much of the time the server spends rolling transaction forward. With SQL Server 7.0 a portion of the database can be restored or rolled forward to minimize recovery time in the event of media failure. Restoring a backup is easy because the restore process automatically creates the database and all the necessary files. SQL server 7.0 supports backup to same tape media with other backup, such as those written by the Microsoft Windows NT backup program.

Hardware & Software requirement specification
Software Requirements
For development, software’s used are:
Operating System                                :  Windows-XP Professional     
                                                                 Version 2002, service pack-2,
                                                                 Microsoft IIS 5.0/6.0
Platform                                               :   .Net
Technology                                          :   Asp.net
Language                                             :   C#(C sharp)           
Backend                                               :   SQL server 2007
Editor                                                   :   Microsoft word processor 2000
For Development                                 :    visual studio .Net setup tools
For Design                                           :   HTML, Visual studio designer
For deployment, software’s used are :
Operating system                                 :  Windows-xp professional     
                                                                Version 2002, service pack-2
Framework                                           :   .Net 2005  
IIS                                                        :   Configured
Backend                                               :   sql server 2000
Hardware Requirements
 For Development, Hardware’s used are:
1.      Pentium IV(dual core processor operating at 3.6 GHz)
2.      40GB hard disk
3.      1GB RAM
 ·    For Deployment, Hardware’s used are :

Minimum
1.      Pentium III or better processor
2.      10 GB hard disk
3.      256MB RAM
4.      10-100 MBPS of Network card
Recommended
1.      Pentium IV
2.      20GB hard disk
3.      1GB RAM
4.      100-512 MBPS of network card


Feasibility Study

Introduction:
                                                The feasibility study of any system is mainly intended to study and analyze the proposed system and to decide whether the system under consideration will be viable or not after implementation. That is it determines the usability of the project after deployment. To come to result a set of query is answered keeping the efficiency of the software and its impact on the domain for which it was developed. It main emphasis is on the following three questions elucidated below as:
What are the user’s requirements and how does a candidate system meet them?
What resources are available for the proposed systems? Is it worth solving the problem?
What is the likely impact of the proposed system on the organization? I.e. how does the proposed system fit with in the organization?
                                                Thus since the feasibility study may lead to commitment of large resources, it becomes necessary that it should be conducted competently and no fundamental errors of judgment are made. Different types of feasibility study and the way we performed on our project “On Line Examination .
Technical Feasibility:
                                                  In technical feasibility, we study all technical issues regarding the proposed system. It is mainly concerned with the specifications of the equipments and the software, which successfully satisfies the end-user’s requirement. The technical needs of the system may vary accordingly but include:
  • The feasibility to produce outputs in a given time.
  • Response time under certain conditions.
  • Ability to process a certain volume of the transaction at a particular speed.
  • Facility to communicate data.
                                                Under this analysis process questions like (i) does the compatible platform exist within our domain or can we procure it? (ii) Does the proposed equipment have the technical capacity to hold the data required using the new system?.
Both at the development site and at server where we will be hiring the space for the website, and also the database would it be possible to upgrade the system after it is developed and implemented, if necessary? And would the recommended technology guarantee the reliability, accuracy and data security? This analysis process requires more emphasis on system configuration given more importance rather than the actual hardware specifications. 
. The configuration of the existing systems is:
  • Processor   : Pentium III, 500 MHz (or above)
  • Memory    : 128 MB (or above)
  • Secondary storage  : 20 GB (or above)
For Software there are following alternatives:
Operating System   :Window 98,2000,XP,NT
Development tools  :ASP.Net ,C# ,HTML,DHTML
Database     :Microsoft SQL server 7.0
      Documentation tool: MS-Word
Economical Feasibility:-
Meaning : re there sufficient benefits in creating the system to make the acceptable? Or are the costs of not creating the system so great that it is advisable to undertaken the project.
This will include three major costs as described below :
  • Cost of  Hardware and Software
  • Cost of Software to be acquired to build and run the product is a one time cost.
  • Buying a back and database is the major part of hardware and Software cost. Comparison between the oracle database high cost and better features with the SQL server low cost and better support for the same vendor operating system make this decision need oriented.
Benefits in reduced cost, error and saving will be made by reduction of present system expenses, time saving and increased accuracy.
Cost Avoidance :
Future cost reduction in form of reduction in the number of administrative staff needed and manual records maintains in organization.
Rise in cost will be avoided.
Operational Feasibility :
Meaning : The system will be used if it is developed well then be resistance from users that undermine the possible application benefits.
Clients Supports :
Client and user support for present system is there, as the current procedure used takes more time and effort than proposed system.
No major training and new skills are required as it is based on DBMS model.
It will help in the time saving and fast processing and dispersal of user request and application.
New product will provide all the benefits of present system with better performance such as improved information, better management and collection of the reports.
User Support :
User involvement in the building of present system is sought to keep in mind the user specific requirement and needs.
User will have control over own information. Important information such as Test result can be generated at the click of a button.

 REQUIREMENTS AND ANALYSIS

Problem Definition

The problem here is to develop a web application which completely automize the examination process for an university.
To perform this the complete problem has been divided into five sub-problems so that they can be solved easily and after that can be integrated to make it an integrated working application.
  • Online Registration / Enrollment of Student
  • Online Login
  • Online Schedule
  • Online Manage the question bank
  • Online Examination
  • Online Result declaration
  • Online  display randomly question.
  • The questions will be display randomly from question bank.
At the Login module user name and password  facility and  credentials should be checked properly at the time of login for student, expert, controller and Exam Dept Admin.
In the schedule Module send  the exam schedule to the student.
In question bank module for the examination could be changed dynamically.
Automatic checking of objective answers and manual checking of descriptive answers should be facilitated, if any.
In the  Objective answers module will be checked automatically by the system from the database and the subjective answer manually checking by exam department will take place.
In the exam module When the student  starts the exam the timer will start automatically and show the student how much time is left.
At result module display the result of each student and send by the exam. Dept.
Requirement Specification

On the basis of  system study performed in an organization about all the functions that deals with Online examination following requirements are specified.
Functional Requirements :

The Functional Requirements of the project are as follows:
  • To provide the functionality to students to appear for the exam online.
  • To provide login interface through which only authorized user can pass by.
  • The timer facility should be provide once the student appears in the Exam.
  • The  web application provide  question to the student randomly.
  • The system should support WAN so that exam can given from anywhere.
  • This system should handle multiple exam at the same time.
  • To functionally enable Exam Controller to define criteria and create Admin and Experts.
  • To functionally enable Exam Dept Admin to manage Question Bank
  • To functionally enable Exam Dept Admin to declare schedule and Results.
  • To functionally enable Expert to send set of Questions.
Non-Functional Requirements
The Non-Functional Requirements of the project are as follows:
  • The system should be reliable and robust.
  • The system should be User friendly.
  • The system should be completely Consistent and Secure.
Interface requirements

  • Interface should be easy to follow,
  • Interface shouldn’t have  very much graphics,
  • Interface shouldn’t have  hidden buttons, and
  • Interface should produce  relevant error message.
In a complete way, we’re expected to build a web based application which       accommodates all functionality of an organization that deal with online examination.
 
Planning and Scheduling
 
Gantt chart :

Gantt chart are a project control technique that can be used for several purpose including scheduling and planning. Gantt chart is also known bar chart with each box representing an activity.

 

TASKS

Week1
Week 2
Week 3
Week 4
Week 5
Week 6
Week 7
Week 8

Requirements Gathering












SRS Creation










Low Level Design










High Level Design
(Interface, Data Design)










Procedural Design









Coding









Testing(Module and Integrated)










Implementation







































 
Pert chart :

Pert stands for program evolution and review technique. A pert chart is a network of boxes and arrows. The boxes in the pert chart can be decorated with starting and ending dates for activities.









 Preliminary Product Description

The system will facilitate online examination and documentation of results. The system can conduct various examinations for various subjects. All one needs to do is change the database accordingly.
project deals with registration or enrollment of students, submission of registration forms and issuing unique id and password to enrolled students
This application has Login module we need the user name and password facility and  credentials should be checked properly at the time of login for student, expert, controller and Exam Dept Admin.
The application has  schedule Module send  the exam schedule to the student.
The application has question bank module for the examination could be changed dynamically.
 The  application will facilitate  Objective answers module will be checked automatically by the system from the database and the subjective answer manually checking by exam department will take place.
This application has exam module When the student  starts the exam the timer will start automatically and show the student how much time is left.
This application has result module display the result of each student and send by the exam. Dept.
Evaluation and printing of students result will be supported
Like any other software application project we need to use good software development practices when faced with working on a web application. Otherwise, the project would not remain in control and we would face problems with timeliness, budgets and quality


Entity Relationship diagram for On Line Examination
 

              
DFD(DATA FLOW DIAGRAMS)






Text Box: Configuration Detail


0-LEVEL DFD
 











Text Box: UserName and Pwd



1-LEVEL DFD(For “Expert” Module)
 









1-LEVEL DFD(For “Exam Dept Admin” Module)
 









 





















Modules and their Description

Basic Modules:
In Our Project with the help of ‘Divide and Conquer theory’ we can divide overall program in Five Modules
These five modules are:
  • Login Module
  • Student Module
  • Exam. Controller Module
  • Exam Dept Module
  • Expert Module
Login Module :
This is the first module in this  project a anyone who want to enter into this project/application . he/she must have pass through this module, in other word we can say that this is authentication module because the user authentication with his/her. To provided user name and password  facility and  credentials should be checked properly at the time of login for student, expert, controller and Exam Dept Admin.
Student Login Form :
This is the form in this  project a student who want to enter into this project application. he/she must have pass through this module, in other word we can say that this is authentication module because the user authentication with his/her.


Registration :
In this module student can get his/her whole information like his name, address fees detail, program and courses. the user can select only one course 
at the time. Our student table will register the student. University will provide each student a unique student Id during enrollment time. The purpose of this is so that no one can register on behalf of any other student. and only the student himself/herself can register for the examination using this id as password. Students only submit his/her documents and fees  after the registration.
View Schedule  :
 In this schedule form student get his/her schedule according to his registration. The schedule is managed by the exam dept.
Exam process
When the student  starts the exam the timer will start automatically and show the student how much time is left.
Show Result :
 In the result  form  will manage the result(Subjective and Objective questions) and Status of the student. This table contains the student id from which we will help us in generating the result.
ExamController Module :
The controller has authority to modify the criteria is provided to the controller of examination and provide an interface from where controller will create new Expert and Admin for Exam Dept.

Manage Admin :
In this module the controller will Create, Delete and  Edit admin  for the exam dept with all of there details.
A Login name  and password has been provided through which the admin can later login to perform all of there tasks.
Manage Expert
In this module the controller will Create, Delete and  Edit experts  for they can later send question sets for objective as well as subjective questions which will be asked to solve to students under exam process.
Sane as Manage Admin module, A Login name  and password has been provided here too through which the expert can later login to send questions.
Exam Dept Module :
In the exam dept  will manage the question bank sent by experts. and make schedule and declare Result.
ManageSchForStu
In this form the exam dept. managed the schedule and  sends to the student with their exam dates.
For this first he see all the details of registered students and allot them date accordingly.
ManageQusBank :
his form manage the subjective and objective question in the question bank sent by the expert module. The Manage Question Bank  managed  the question will be display randomly from question bank.

CheckSubQus  :
This module checks the subjective question attempted by the student during the exam. subjective answer manually checking by exam department will take place
Declare result :
in this form the exam dept. manage the result  and  sends to the student when they complete their exam.
Expert Module :
In the expert  module the Experts to send a collection of questions(objective and        subjective) in Question Bank
Subjective Question :
SubQus table will contain Subjective question and it’s right answer. To not provide facility of copy and paste while attempting the Subjective questions on the web page.Here the iSubQusId is the primary key.
Data Structures
Table Name : Course
Column Name
Data Type
Length
Couid   PK
Int
4
Coucode
char
10
Couname
Char
50
Isemester
Char
10
Iproid
Int
4
Table Name :  Objqattempted
Column Name
Data Type
Length
iObjQAid  PK
Int
4
iStuId
Int
4
iObjQusId
Int
4
ChAns
Char
10
Table Name :  ExamDept
Column Name
Data Type
Length
ExamDeptId  PK
Int
4
Vloginname
Varchar
40
Vpassword
Varchar
40
Table Name : Expert
Column Name
Data Type
Length
iExId     PK
Int
4
Cfname
Char
20
Clname
Char
20
Course
Char
20
Vloginname
Varchar
40
Vpassword
Varchar
40
Table Name : ObjQus
Column Name
Data Type
Length
iObjqusId   PK
Int
4
iExId
Int
4
tObjQus
Text
16
coptionA
Char
10
coptionB
Char
10
CoptionC
Char
10
CoptionD
Char
10
cAns
Char
10
bStatus
Bit
1


Table Name : Program
Column Name
Data Type
Length
iProgId   PK
Int
4
cProgname
Char
10
Cduration
Char
10
iFess
Int
4

Table Name : Result
Column Name
Data Type
Length
iresultId   PK
Int
4
iStuId
Int
4
imarkofSub
Int
4
imarkofObj
Int
4
Chstatus
Char
10

Table Name : Criteria
Column Name
Data Type
Length
Icriteriaid PK
Int
4
Vcriterianame
Varchar
50
Tcriteriatext
Text
4


Table Name : Student
Column Name
Data Type
Length
iStuId    PK
Int
4
CEno
char
10
CFname
Char
10
cLastname
Char
10
cProgram
Char
10
cCourse
Char
10
iStudyCenCode
Int
4
vLoginname
Varchar
40
vPassword
Varchar
40

Table Name : SubQus
Column Name
Data Type
Length
isubQusId  PK
Int
4
iExid
Int
4
tQus
Text
16
tAns
Text
16
iMaxMarks
Int
4
bStatus
Bit
1


Table Description
Student :
Our student table will register the student. University will provide each student a unique student Id during enrollment time. The purpose of this is so that no one can register on behalf of any other student. and only the student himself/herself can register for the examination using this id and  password. Students only submit his/her documents and fees  after the registration. In this student table store his/her whole information like his name, address fees detail, program and courses. the user can select only one course  at the time.
Subjective Question :
SubQus table will contain Subjective question and it’s right answer. Here the iSubQusId is the primary key.
Objective Question :
ObjQus table will contain objective question and four options and right answer. Here the question id is the primary key.
Result :
 result table will contain the result(Subjective and Objective questions) and Status of the student. This table contains the student id from which we will help us in generating the result.
Schedule  :
Exam Dept managed the schedule and it to student while successfully resgistraion.This module contains information about their exam with their date.


ExamDept :
Our ExamDept table will register the institute or university Examination department administrator. This Manage Admin form can access only the controller. the controller has also controllerId and   Password & controller name.. Examdept table will maintain the id and password of Examdept admin. controller will make admin for different center. The Exam Dept will manage the question bank sent by experts and evaluated the answer.
Expert :
Our Expert table will register the institute or university Expert administrator. This Manage Expert form can access only the controller. This module contain the information about expert like his name & expert in which course.
Subjective Question  Attempted :
In this SubQAttempted table will have iSubQAId  , iStuId, iSubQusId, And tAns. iStuId will be the foreign key for the table Student.
Objective Question  Attempted :
ObjQAttempted table will have iObjQAId, iStuId, iObjQusId, And cAns. iStuId will be the foreign key for the table Student.
Course :
In the course table contains the information about the iCouId,cCouName, iSemester and the iProId. Here the iCouId  is the primary key.
Program :
This program table contains the information about the like  course iProgId, cProgName, and the iFessof the program. Here the iProgId is the primary key.

Normalization:
Our Database “OnLEDB” is normalized up to 3 NF.
From starting our Database has been designed while strictly keeping in mind the concept of Normalization and their positive effect on the complete output product, so we have kept the tables normalized from the scratch. It means our tables are completely normalized with no unwanted redundancy. And so we need not to normalize it further.













Data Integrity Design

Student
Primary key – iStuId
Alternate key – cENo, cFName, cLName, cProgram, iStudyCenCode, vLoginName,
vPasswd
Foreign key –iCouId (for Student table)
Course
Primary key – iCouId
Alternate key – CouCode, CouName, iSemester
Foreign key –iCouId(for Course table)
ExamDept
Primary key – iUserId
Alternate key – vLoginName, vPasswde
Expert
Primary key – iExId
Alternate key – cFName, cLname, cCourse, vLoginName, vPasswd
ObjQAttempted
Primary key – iObjQAId
Alternate key – cAns
Foreign key –iObjQusId (for ObjQAttempted table)



ObjQus
Primary key – iObjQusId
Alternate key – tObjQus, cOptionA, cOptionB, cOptionC, cOptionD, cAns, CStatus
Foreign key –iExpertId (for Expert table)
Program
Primary key – iProgId
Alternate key – cProgName, cDuration, iFess
Result
Primary key – iResultId
Alternate key – iMarkOfSub, iMarkOfObj, bStatus
Foreign key–  iStuId(for result table )
Schedule
Primary key – iSchId
Alternate key – dtSDate
Foreign key–  iStuId(for Schedule table)
SubQAttempted
Primary key – iSubQAId
Alternate key –tAns
SubQus
Primary key – iSubQusId
Foreign key –iSubQusId(for SubQAttempted table)
Alternate key – tQus,tAns, iMaxMarks, cStatus
Foreign key –iExpertId(for SubQus table)
Process Logic
Login :



Oval:     Login
 
User name


Main form
 
 
Password







 
Type









 



                                                                   If valid



 



Exam Dept :-





Oval: ExamDept
 
ExamDePId
Vloginname
Vpassword
Board


 


                                                                                                                  


                                                                                                 ExamDept





Course



 


couid
coucode
couname
iSemester
iPeriod


 
                                                                                                          Course
ObjQattempted :


Oval: ObjQuattemptted

ObjQuattemptted
						ObjQuattemptted
 



iObjQAId
IstuId
IObjQusId
ChAns


 
                                     
                                                                                       ObjQuatempted                
                                                    
ObjQus :-


Oval:            ObjQus
iObjQusId
iExId
tObjQus
CoptionA
CoptionB
CoptionC
CoptionD
CAns
bStatus                                                                                   ObjQus

                                                                                                                  

Program


Oval: Program

iProgId
iStuId
iMarksofSub
iMarksofObj
chstaus


                                                                                                Program
                                                                                                         
Result :



Oval: Result

ObjQuattemptted
						ObjQuattemptted
 


iresultId
IstuId
ImarkOfSub
imarkOfObj
chStatus
                                     
                                                                                       Result              
                                                    
Student :-


Oval:              Student
           
iStuId
cEno
CFname
CLname
CProgram
CCourse
iStudyCenCode
VLoginName
VPassword                                                                                   Student
                                                                                     

SubQus :


Oval: Program

isuQusId
iExId
tQus
tAns
iMaxMarks
bStatus

                                                                                                SubQus
                                                                                                         
Criteria:



Oval: Criteria

ObjQuattemptted
						ObjQuattemptted
 


iCriteriaId
VcriteriaName
tcriteriaText



 
                                     
                                                                                     
Criteria     
Security Issues
            Security is an important issue for modern IT system. System administrator and security administrator are responsible for safeguard’s organization data and computing infrastructure.
Password Encryption: Whatever security measures taken, in any case if anyone with destructive or malicious mind gets access to the database he can temper the critical data. To restrict it we’ve used encrypting algorithm facilitated to us by Microsoft ASP.Net .
Two algorithms’ are there
  • SHA1- It takes the password and encrypt it in a string of 40 characters
  • MD5- It takes the password and encrypt it in a string of  32characters
The beauty of these Algos are that whatever be the length of password the length of converted string remains same.
However a question arise here that if this thing is that good then why didn’t we used it for storing each and every data????
The answer lies in the fact that not all data are needed to be encrypted as long as we keep the critical data(like password encrypted and safe). It will only increase the load on server and network with no additional advantage. So we’ve  not used this encryption Algo on all data blindly.
            We have implemented different approach related to security issue for our project “Online Examination” :
Authorization:
            Super Admin has authorized to give permission to admin for the registration of the students.
Authentication:
            Only registered students can appear for the examination. Every registered student has different and unique UserId.
Information Integrity:
            Only Super admin has right in the modification of the information. There is no possibility by the end user or unauthorized user of hacking the information.
Detection:
            Super Admin will have a bank up of the project. Also there is a complex and alphanumeric password for admin and student. Super admin itself has a complex and alphanumeric password. There is a option for changing the password by all the admin and itself after every month.
 
Future Scope of the Project
The development of this project surely prompts many new areas of investigation. This project has wide scope to implement it in any University/Institution having multiple paper there. This project covers all functionalities related to On-Line Examination Hall Hence it can be implemented any-where else after minute organization level customization
Moreover some parts of the project have remained uncompleted due to some reasons. First of all limitations of our project, which has been discussed in previous topic make place for future enhancements. Though that was not the part of objective of our project but it would have great to implement that provided we’d enough time.
Some of them are all those which are enumerated in the limitation section like:
·         Online Payment
·         A module from where entities can communicate
·         And a faster process for subjective paper evaluation

Bibliography

  • “ASP.NET Black Book”
  • ”A Programmer’s Guide to ADO.NET in C#” by Mahesh Chand.
  • ”Microsoft  ASP.Net 2.0 Step by Step” by George shepherd.
·          Microsoft SQL Server 2000-Rebecca Riordan,Andrew J Brust.
·         www.microsoft.com  (Official Site of Microsoft)
·         www.asp.net  
·       Software Engineering, A Practitioner’s Approach – Roger S. Pressman

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